Printing press



Get. 5 1926 t 1,602,181

M. s'rQEssEL.

PRINTING PRESS Filed oct. 24,"1923- 2 sheets-Sheet 2 INVENTUR A TTUHNE Y 12, there are mounted upon the frame thereof two rollers 30, for co-operation with a cam 31, which is keyed to the shaft 17. The rollers are disposed uponl diametrically opposite portions of the couiitershaft, so that, as the cam 3l is rotated, the bed is re- 'ciprocated in relation to the platen 11.

The continuous web 32 of paper is wound upon a roll or core 33, carried by'a shaft 34. Thisshaft is journaled in brackets 34 on the main frame, the web being carried over the platen 11, where it receives the iinpressions from the form 13, and thence it passes between feed rollers 35 and 35, by which it is fed, for instance, to a wind-up reel, not shown. There are two feed rollers provided, the same being journaled instandards 36. On the shaft of the roller 35 is mounted a pinion 37 and on the shaft of the roller 35 a pinion 3S. These pinions are connected with thesaid shaftsby a suitable clutch mechanism which permits the same to rotate freely on the said shafts in one direction, but causesthe'pinions-v to carry the shafts andA VVthus the 'feeding rollers with theml when moving in ,the opposite direction. l/Vith the pinion 37 meshes a rack-bar 39and 'with the pinion 38 a rack-bar 40. These bars are connectedV by a block 41, the bars meshing withthe said pinions on diametrically opposite portions of the said pinions, fora purpose hereinafter to bedescribed.y kThe' block 41 is provided rwith a slot 42, in which is seated a pin 43 on the bellcraiik lever: 44, the latter being fulcruined at 45 Vto a brackety 46 on the machine frame. This bellcrank lever is connected by a'bar 47 with a lever 48, fulcrumediat 49 to the machine frame and carrying an antifriction roller r whic'h bears against the peripheial portion of the disk 19, thesaid disk being in the form of a cam, as clearly shown in Figs. 2'andf3 of the drawings. 'A spring, noti shown, serves to keep the antifriction roller in continuous contact.- with the cam disk19. -A presst'ire roller 35 cooperates 'with the feeding' roller85 (Fig. 2). Vhen prises an ink fountain r51, that is supported the rack-bars 89 and 40 move in the direction of the arrow shown ladjacent the same in Figs. 2 and 5 of the drawings, the feed rollers 35 and 35 idle,V and when the rackbars move iii the opposite direction the feeding rollers advance the web 82 in relationl to theY platen 11 the desired distance. The movements of the cams'l and 19 are so timed that the feeding ofthe web is effected vwhile theibed moves on its upward stroke,

the Vweb being kept stationary during the printing operation. v ,v

The inking mechanism of the press comin any suitable manner by `themachine frame and Yhas rotatably mounted therein a feed roller V52,',with which vco-operates af mechanism 53 for regulating the amount roller.

of ink that the roller 52 feeds through a slot in the bottom of the ink fountain. Below the ink fountain is reciprocably mounted aframe 54 on guides 54 on the machine frame, the frame 54 being connected by a link 55 with a bellcranklever 56, that is fulcrumed'at 57 to the'main frame of the machine and pivotallyY connected at 58 with a vertically reciprocable frame 59, the latter sliding in guides 60 on the machine frame. The frame 59 carries an antifriction vroller 61, co-operating with a cam 62, the latter beingiixed to the countershaft' 17. This cam causes an upward movement of the frame 59, a downward movement of the latter being effected by a spring 63, which is fixed to the frame 59 and to the main frame 10. The Aframe 54 carries a plurality kof rollers, in the present case four, of which the outermost roller, denoted 'by the numeral 64, constitutes the distributing roller of the inking mechanism, and the others, denoted by the numeral 65, the' inking rollers. The

distributing and inking rollers co-operate Y The feed roller 52 has fixed to it a ratchet i wheel 66, which isactuated by a `pawl 67, carried by an arm`68, the latter'being oscillatably mounted upon the shaft of the feed roller. This arm isprovided with a slot 69, in which is seated'a pin 70 on a lever 71, the latter beingfulcrumed at 72 to a bracket 73 on the frame 10. The lever 71 carries an anti-friction roller 74, co-operating vwith Va face cam 75 on the countershaft 17. During each revolution of the shaft 17 the pawl 67 engages and actuates the ratchet wheel 66 andthe feed roller 52, the latter depositing ink along a narrowstrip, lengthwise on the distributing roller 64. The lastem'entioned roller transfers the ink to the inkingplate when the frame 54 movesin the direction of the arrow shown adjacent the same in Fig. 1 of the drawings. At the same vtime the inking rollers 65 transfer the'ink that has been distributed over theinking plate on the the said bed onits outward stroke before the bed starts its vdownward movement. The movements of the cams 75 and 62, on the p' other hand, Vmust be so timed that( the feed roller 52`is given a partialrotation either before or while the distributing roller Vl`64 comes or is contact with vtheusaid feed The operation "of the press is as follows: When the' elements areiin the positions shown in Figs. land 3 ofthe drawings,y the disk 19 is connected with the countershaft 17. hile the bed 12 moves on its upward stroke, the feed rollers 35 and 35 advance the web over vthe platen 11 the desired distance. permost position (Fig. 1), the frame 54 starts its inward movement, whereby the inking rollers 65 ktransfer the ink from the inking platen to the form and at'the` same time the rollers 64 distribute ink over the face of the said inking plate. The frame 54 starts then its movement in the opposite direction, the bed moving downwards as soon as the said frame has cleared the bed, the form making an impression on the bed. The bed then moves upwards. The cycle of operation now described is then repeated.

Vhat I claim is A printing press comprising a frame, a bed thereon holding a form, a shaft rotat- As soon as the bed arrives in its upf y ably mounted on tain stationary on said frame, said .fountain being provided with a slot in its bottom, a feed roller in said fountain adjacent said slot,vrneans'on said shaftvfor intermittently rotating said feedl roller, the outer face of the bottom of said fountain constituting an inking plate, va frame reciprocable in relation to said fountain, land a plurality of rollers carried bysaid frame, each having an acting face corresponding in length to that of the slot in said ink fountain, one of said rollers coacting with said feed roller for distributing the ink on said inking plate and the other rollers transferring the ink from said inking plate to said form.

Signed at New York, in the'county of New York and State of'New York, this 17th'day of October, A. D. 1923. v

. MAX STOESSEL.

aff

said frame, an ink 'fou'n' 

